Gambaran Pengetahuan Bahaya Rokok Pada Remaja di SMKN 1 Tanjunganom Kabupaten Nganjuk

The habit of smoking is not only a habit for adults but also a habit for teenagers. Someone who smokes for more than 10 years has the greatest risk of coronary heart disease (CHD). The average number of cigarettes smoked by East Java residents who smoke every day of the week in 2021 is 77.54 cigarettes. Nganjuk Regency is also the largest producer of cigarettes in East Java, so there is a possibility that there will be more cigarette users in East Java. The purpose of this study was to describe the knowledge of the dangers of smoking in adolescents. This research uses a type of quantitative descriptive research. Sampling using random sampling with a sample of 75 respondents. Based on the survey results on 75 respondents, it was found that 18 respondents (24%) had less knowledge, while 46 respondents (61.3%) had sufficient knowledge, and 11 respondents (14.7%) had good knowledge. Based on the results of the study, it was found that the level of knowledge of the dangers of smoking in adolescents at SMKN 1 Tanjunganom was in the sufficient category, with 46 respondents (61.3%). It is hoped that the school will provide an understanding of the dangers of smoking in the form of smoking-related health education and can be included in subjects in the form of student worksheets so that students' knowledge will increase more about the effects that smoking can cause both those related to themselves and the surrounding environment.